Package, marking, and board-fit verification
The 1.5KE22A B0G: Supplied in a DO-201AA (DO-27) axial leaded package, through-hole mount, with the cathode band marking for polarity — the bulk packaging means each unit is loose, not taped and reeled, so date-code lot segregation is visible on receipt. The laser etch on the body should match the TSC foundry font for the production week on the label — any mismatch in character geometry or pad oxidation on the leads warrants a decap X-ray before the part hits the line.